Close, and a cigar!--Why size perception relates to performance

In baseball batting, golf putting, and dart throwing, successful players estimate the size of the target object to be bigger than their less successful counterparts. While more and more empirical evidence is accumulated supporting the existence of this intriguing phenomenon, an explanation of the processes underpinning this effect remains to be provided. Here, we re-analysed data from a dart throwing experiment to examine the proposal--recently put forward by Proffitt and Linkenauger (in press)--that the variability in target-related performance may serve as a scaling metric for perceived target size which may explain why actors who perform consistently close to the target perceive the target to be bigger. Our results confirm that less variability in target-related performance in darts relates to perceiving the target as being bigger, thereby providing initial support for Proffitt and Linkenauger's proposal.     

Cognitive abilities, sociocultural background and academic achievement

The influence of students' sociocultural background on academic achievement is a well established fact. Research also points out that sociocultural background is related to students' cognitive abilities and these have an effect on their academic achievement. However, the mediator role of cognitive abilities on the relationship between sociocultural background and academic achievement is less well known. A structural equation model that represents these relationships was tested in a sample (N= 728) of Portuguese junior high school students. Multigroup analysis of the model showed the importance of the cognitive ability mediation effect between sociocultural background and academic achievement in the 7th and 9th grades, but not in the 8th grade. This difference may be the result of the academic transition experienced in the 7th and 9th grades in the Portuguese educational system, which requires parents' higher involvement in school.     

Psychological Change in Everyday Life: An Exploratory Study

The innovative moments model was used in a pilot study that aimed to explore the change processes involved in everyday change outside psychotherapy. According to this model, the emergence and development of innovative moments (IMs) as exceptions to a problematic pattern are closely associated with psychological change. A longitudinal design covering 4 months of interviews was implemented with 13 adults who were coping with significant personal problems without clinical psychopathological complaints. Semistructured interviews were used to explore participants' personal accounts of their problems, and change was assessed using a scaling task at the end of the study. A total of 114 interviews were analyzed using the innovative moments coding system. A general linear model showed that higher levels of change were associated with higher proportions of complex IMs over time. Moreover, lower levels of change were associated with an increase in elementary IMs. These results support the idea that successful psychological change in everyday life shares similarities with the change pattern found in psychotherapy using the innovative moments model.     

How does frustration make you feel? A motivational analysis in exercise context

Not all exercisers experience the same psychological benefits. The understanding of motivational processes and their relation with emotional consequences of exercise should be considered in the context of the exercisers motivation. This was a cross-sectional study of 153 gym users (M?=?36.21 years, SD?=?8.44; 44.9% men, 55.1% women; M years exercise?=?8). Weekly attendance averaged 4.3 (SD?=?2.6) sessions per week; reported exertion intensity was 5.6 (SD?=?2.1) (scale: 0–11). The basic psychological needs (BPNs) posited by self-determination theory, motivational regulation, and emotional response to physical activity, were measured. Possible mediators of BPN-emotion relationships were analyzed. BPN satisfaction was associated with a positive emotional response to exercise which was partially mediated by the effect of autonomous regulation on positive activation and psychological well-being. Mediation models indicated that the negative effects of BPN frustration were counteracted by autonomous regulation. Exercise professionals should be able to create psychologically supportive contexts and identify behaviors associated with need frustration so as to enhance emotional responses to exercise.     

Assessing Stimulus Control in a Discrimination Task with Compound Stimuli: Evaluating Testing Procedures and Tracking Eye Fixations

The Psychological Record - Experiments with pigeons have suggested that the way stimuli are arranged in tests affects the demonstration of the stimulus control established during training. The...